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Finding the Fourth Proportional to 987,532,404.04, 1,481,627,894.94 and 656,843,100.58

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Solution

The fourth proportional to 987,532,404.04, 1,481,627,894.94 and 656,843,100.58 is: 985,483,672.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,532,404.04 : 1,481,627,894.94 = 656,843,100.58 : x
  2. Step 2: Convert to fraction form
    987,532,404.04/1,481,627,894.94 = 656,843,100.58/x
  3. Step 3: Cross multiply
    987,532,404.04x = 1,481,627,894.94 × 656,843,100.58
  4. Step 4: Simplify right side
    987,532,404.04x = 973,197,060,418,208,256
  5. Step 5: Solve for x
    x = 973,197,060,418,208,256/987,532,404.04
  6. Step 6: Final answer
    x = 985,483,672.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.